#!/usr/bin/node
//<script>
    //alert(a);    //function a(){alert(4)}
    console.log(a)
    var a = 1;
    //alert(a);    //1
    function a(){alert(2)}
    //alert(a);    //1
    console.log(a)
    var a = 3;
    //alert(a);    //3
    console.log(a)
    function a(){alert(4)}
	a = 4
    //alert(a);    //4
    console.log(a)
//</script>
